.page-faq {
  --faq-num-col: 2.75rem;
  --faq-rail-w: 13rem;
}

.page-faq .crumbs {
  margin: 1.25rem 0 0;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-faq .crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

.page-faq .crumbs-sep {
  margin: 0 0.45rem;
  color: rgba(168, 184, 196, 0.5);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 1.75rem;
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero h1 {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 7.2vw, 3.35rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero h1 br {
  display: none;
}

.page-faq .faq-hero-lead {
  margin: 1.1rem 0 0;
  max-width: 40ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.35rem;
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
  color: var(--mist);
}

.page-faq .faq-hero-facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
}

.page-faq .faq-hero-facts .num-mono {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--mint);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-faq .faq-hero-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 18%, var(--glow-coral), transparent 62%),
    linear-gradient(150deg, var(--ink-800), var(--ink-900));
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-hero-media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--coral), var(--amber) 55%, var(--mint));
  opacity: 0.85;
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: 0.86;
}

/* ---------- 分类导航 ---------- */
.page-faq .faq-tabs-sec {
  padding: 1.5rem 0 0.25rem;
}

.page-faq .faq-tabs {
  display: flex;
  gap: 0.65rem;
  overflow-x: auto;
  padding-bottom: 0.35rem;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tabs::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  min-width: 9.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--line);
  border-left: 2px solid var(--ink-700);
  border-radius: var(--radius);
  background: var(--ink-800);
  text-decoration: none;
  color: var(--paper);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  border-left-color: var(--coral);
  background: var(--ink-700);
  transform: translateY(-2px);
}

.page-faq .faq-tab-num {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--coral);
}

.page-faq .faq-tab-name {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-faq .faq-tab-desc {
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-groups {
  margin-top: 1.5rem;
}

.page-faq .faq-group {
  display: grid;
  gap: 1.1rem;
  padding: 2.25rem 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 5rem;
}

.page-faq .faq-range {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.9rem;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--mint);
  text-shadow: 0 0 22px var(--glow-mint);
}

.page-faq .faq-group-title {
  margin: 0.6rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 4.6vw, 1.7rem);
  font-weight: 900;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-group-lead {
  margin: 0.55rem 0 0;
  max-width: 30ch;
  font-size: 0.87rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-group-lead a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(69, 242, 200, 0.4);
  transition: border-color 0.18s var(--ease);
}

.page-faq .faq-group-lead a:hover,
.page-faq .faq-group-lead a:focus-visible {
  border-bottom-color: var(--mint);
}

.page-faq .faq-group-list {
  min-width: 0;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: 4.5rem;
  transition: background 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-faq .faq-item:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: var(--faq-num-col) 1fr 1.1rem;
  align-items: start;
  gap: 0.6rem;
  padding: 1rem 0.35rem 1rem 0;
  cursor: pointer;
  list-style: none;
  outline-offset: 3px;
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--mint);
  border-radius: var(--radius);
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: -0.02em;
  color: var(--mist);
  padding-top: 0.18rem;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-q {
  font-size: 0.98rem;
  line-height: 1.65;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-mark {
  position: relative;
  width: 0.68rem;
  height: 0.68rem;
  margin-top: 0.42rem;
  border-right: 1.5px solid var(--mist);
  border-bottom: 1.5px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 0.26s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-item:hover .faq-num,
.page-faq .faq-item[open] .faq-num {
  color: var(--coral);
}

.page-faq .faq-item:hover .faq-mark,
.page-faq .faq-item[open] .faq-mark {
  border-color: var(--coral);
}

.page-faq .faq-item[open] .faq-mark {
  transform: rotate(225deg);
}

.page-faq .faq-a {
  padding: 0 0.6rem 1.15rem var(--faq-num-col);
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-item:target {
  box-shadow: inset 3px 0 0 var(--mint), 0 0 0 1px rgba(69, 242, 200, 0.16);
  background: rgba(69, 242, 200, 0.05);
}

.page-faq .faq-item:target .faq-num {
  color: var(--mint);
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-item[open] .faq-a {
  animation: faq-answer-in 0.24s var(--ease) both;
}

/* ---------- 页尾速查 ---------- */
.page-faq .faq-tail {
  padding: 2.5rem 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-tail-grid {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-tail-media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-tail-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  opacity: 0.9;
}

.page-faq .index-roll {
  border: 1px solid rgba(7, 24, 38, 0.16);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink-900);
  overflow: hidden;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.32);
}

.page-faq .index-roll-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid rgba(7, 24, 38, 0.14);
  background: linear-gradient(180deg, var(--cream), var(--paper));
}

.page-faq .index-roll-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0.01em;
  color: var(--ink-900);
}

.page-faq .index-roll-toggle {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(7, 24, 38, 0.28);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink-900);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .index-roll-toggle:hover,
.page-faq .index-roll-toggle:focus-visible {
  background: var(--ink-900);
  color: var(--paper);
}

.page-faq .index-roll-list {
  display: grid;
  margin: 0;
  padding: 0.3rem 0;
  list-style: none;
}

.page-faq .index-roll-list[data-collapsed="true"] {
  display: none;
}

@keyframes roll-light-up {
  from {
    opacity: 0;
    transform: translateX(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .roll-item {
  display: grid;
  grid-template-columns: 2.6rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
  padding: 0.6rem 1.1rem;
  border-bottom: 1px dashed rgba(7, 24, 38, 0.14);
  animation: roll-light-up 0.32s var(--ease) both;
  animation-delay: calc(var(--i, 0) * 70ms);
}

.page-faq .roll-item:last-child {
  border-bottom: 0;
}

.page-faq .roll-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: -0.02em;
  color: var(--coral-deep);
}

.page-faq .roll-text {
  font-size: 0.87rem;
  line-height: 1.6;
  color: var(--ink-900);
}

/* ---------- 联系通道 ---------- */
.page-faq .faq-reach {
  padding: 2.5rem 0 3.5rem;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-reach-title {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 5.4vw, 2.1rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-reach-lead {
  margin: 0.9rem 0 0;
  max-width: 42ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-reach-lead a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(69, 242, 200, 0.4);
}

.page-faq .faq-reach-lead a:hover,
.page-faq .faq-reach-lead a:focus-visible {
  border-bottom-color: var(--mint);
}

.page-faq .faq-reach-list {
  display: grid;
  gap: 0.1rem;
  margin: 1.5rem 0 1.6rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-reach-list li {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-reach-key {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-reach-val {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: -0.01em;
  color: var(--paper);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq {
    --faq-num-col: 3.25rem;
  }

  .page-faq .faq-hero {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: 2.5rem;
    padding: 3rem 0 3.5rem;
  }

  .page-faq .faq-hero h1 br {
    display: inline;
  }

  .page-faq .faq-hero-media img {
    aspect-ratio: 4 / 3;
  }

  .page-faq .faq-tabs-sec {
    padding-top: 2rem;
  }

  .page-faq .faq-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-tab {
    min-width: 0;
  }

  .page-faq .faq-tail-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
    gap: 2rem;
  }
}

@media (min-width: 960px) {
  .page-faq {
    --faq-num-col: 3.6rem;
    --faq-rail-w: 13rem;
  }

  .page-faq .crumbs {
    margin-top: 1.75rem;
  }

  .page-faq .faq-hero {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3.5rem;
    padding: 3.5rem 0 4rem;
  }

  .page-faq .faq-hero-lead {
    font-size: 1.05rem;
  }

  .page-faq .faq-hero-media img {
    aspect-ratio: 2 / 1;
  }

  .page-faq .faq-tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-faq .faq-group {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 3.5rem;
    padding: 3.25rem 0;
    align-items: start;
  }

  .page-faq .faq-group-rail {
    position: sticky;
    top: 6rem;
  }

  .page-faq .faq-range {
    font-size: 2.35rem;
  }

  .page-faq .faq-q {
    font-size: 1.02rem;
  }

  .page-faq .faq-a p {
    font-size: 0.94rem;
  }

  .page-faq .faq-tail {
    padding: 3.5rem 0;
  }

  .page-faq .faq-reach {
    padding: 3.5rem 0 4.5rem;
  }

  .page-faq .faq-reach-list li {
    grid-template-columns: 6.5rem 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-a,
  .page-faq .roll-item {
    animation: none;
  }

  .page-faq .faq-tab:hover,
  .page-faq .faq-tab:focus-visible {
    transform: none;
  }

  .page-faq .faq-mark {
    transition: none;
  }
}

.page-faq {
  --i: inherit;
}